B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
B23K 26/14 (2006.01) F04D 29/04 (2006.01) F04D 29/58 (2006.01) H01S 3/036 (2006.01)
Patent
CA 2042401
ABSTRACT A turbo blower is used in combination with a gas laser oscillation device for machining, e.g., cutting off, workpieces. The turbo blower comprises a shaft (2) having an impeller (1) on one end thereof, a pair of bearings (5, 6) on which the shaft (2) is supported, and a motor (3, 4) for rotating the shaft. Heat radiating fins (11) are mounted on the shaft (2) for radiating the heat which is generated by a rotor (3) of the motor, thus preventing the heat Prom being transmitted to the bearings (5, 6). The heat radiating fins are forcibly cooled by a portion of a laser gas for thereby greatly increasing the heat radiation efficiency. The service life of the grease in the bearings and the bearings themselves is increased, thus reducing an expenditure of labor for grease replenishment and bearing replacement. The bearings are also increased in reliability.
Funakubo Tsutomu
Karube Norio
Nakahara Kenji
Fanuc Ltd
Funakubo Tsutomu
Karube Norio
Marks & Clerk
Nakahara Kenji
LandOfFree
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